The aim of the game is control the flood while moving up. All the adjacent pixel tiles of the same color as the pixel tapped will become the flood. Walls obstruct you to move ahead.
Make sure you do not let the bombs in the Flood or you will have to start again. Coins on the other hand will let you unlock new colors and themes.
Unlock all 10 unique color sets and characters to challenge and excite yourself.
The higher you are the higher your score. *IMPORTANT* Make sure your score is higher than your friends.